As I understand it, the TOU columns in the TOU View currently show only imported energy for each TOU period. My local utility bills me (or credits me) based on net energy import over the whole TOU period thus the way PVOutput currently shows TOU Import doesn’t mean anything to me.
I would like to suggest for a future enhancement that columns be added to the TOU View that summarize the net energy imported (or exported as a negative number) for each TOU period. I do this in a spreadsheet now by using the GetStatus API call and a custom script to add up the net energy for each TOU Period. It would be nice to see it live on PVOutput.